目录hdH嘉泰姆

1.产品概述                       2.产品特点hdH嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 hdH嘉泰姆
5.产品封装图                     6.电路原理图                   hdH嘉泰姆
7.功能概述                        8.相关产品hdH嘉泰姆

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一,产品概述(General Description)   hdH嘉泰姆

    The CXSD61036 is high efficiency synchronous,PWM step-downhdH嘉泰姆
DC/DC converters working under an input voltagehdH嘉泰姆
range of 2.5V to 5.5V. This feature makes the CXSD61036 suitablehdH嘉泰姆
for single Li-lon battery-powered applications.100% duty cyclehdH嘉泰姆
capability extends battery life in portable devices, while the quiescenthdH嘉泰姆
current is 200 A with no load, and drops to < 1 A in shutdown.hdH嘉泰姆
       The internal synchronous switch is  desired to increase efficiencyhdH嘉泰姆
without an external Schottky diode. The 1.4 MHz fixed switchinghdH嘉泰姆
frequency allows the using of tiny,low profile inductors and ceramichdH嘉泰姆
capacitors,which minimized overall solution footprinthdH嘉泰姆
        The CXSD61036 converters are available in the industry standardhdH嘉泰姆
SOT-23-5 power packages (or upon request)hdH嘉泰姆
二.产品特点(Features)hdH嘉泰姆

1.)Up to 95% EfficiencyhdH嘉泰姆
2.)Current mode operation for excellent line and loadhdH嘉泰姆
     transient responsehdH嘉泰姆
3)Low quiescent current: 230 UAhdH嘉泰姆
4)Low Switch on Resistance RDS(ON),Internal Switch: 0.35hdH嘉泰姆
5)Output voltage 5.5V 0.6VhdH嘉泰姆
6)Automatic PWM/PFM mode switchinghdH嘉泰姆
7)No Schottky diode requiredhdH嘉泰姆
8)1.4MHz fixed frequency switchinghdH嘉泰姆
9)Short-Circuit protectionhdH嘉泰姆
10)Shutdown quiescent current: < 1 UAhdH嘉泰姆
11)Low profile SOT-23-5 package (lead-freehdH嘉泰姆
12)packaging is now available)hdH嘉泰姆
三,应用范围 (Applications)hdH嘉泰姆
Digital cameras and MP3hdH嘉泰姆
Palmtop computers / PDAshdH嘉泰姆
Cellular phoneshdH嘉泰姆
Wireless handsets and DSL modemshdH嘉泰姆
PC cardshdH嘉泰姆
Portable media playershdH嘉泰姆
四.下载产品资料PDF文档hdH嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！hdH嘉泰姆

 hdH嘉泰姆

五,产品封装图 (Package)hdH嘉泰姆

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六.电路原理图hdH嘉泰姆

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七,功能概述hdH嘉泰姆

INDUCTOR SELECTIONhdH嘉泰姆

For most applications, the value of the inductor will fall in the range of 1μH to 4.7μH. Its value ishdH嘉泰姆
chosen based on the desired ripple current. Large value inductors lower ripple current and smallhdH嘉泰姆
value inductors result in higher ripple currents. Higher VIN or VOUT also increases the ripplehdH嘉泰姆

current as shown in equation 1. A reasonable starting point for setting ripple current is
IL =240mA (40% of 600mA).hdH嘉泰姆
The DC current rating of the inductor should be at least equal to the maximum load current plushdH嘉泰姆
half the ripple current to prevent core saturation. Thus, a 720mA rated inductor should behdH嘉泰姆
enough for most applications (600mA + 120mA). For better efficiency, choose a low DC-resistancehdH嘉泰姆
inductor.hdH嘉泰姆
Different core materials and shapes will change the size/current and price/current relationship ofhdH嘉泰姆
an inductor. Toroid or shielded pot cores in ferrite or permalloy materials are small and don’thdH嘉泰姆
radiate much energy, but generally cost more than powdered iron core inductors with similarhdH嘉泰姆
electrical characteristics. The choice of which style inductor to use often depends more on thehdH嘉泰姆

price vs size requirements and any radiated field/EMI requirements than on what the CXSD61036hdH嘉泰姆

requires to operate. Table 1 shows some typical surface mount inductors that work well inhdH嘉泰姆
八,相关产品                 更多同类产品.......hdH嘉泰姆